retinex

retinex

Properties

GstRetinexMethod method Read / Write
gint scales Read / Write

Types and Values

struct GstRetinex

Description

Basic and multiscale retinex for colour image enhancement, see article:

Rahman, Zia-ur, Daniel J. Jobson, and Glenn A. Woodell. "Multi-scale retinex for color image enhancement." Image Processing, 1996. Proceedings., International Conference on. Vol. 3. IEEE, 1996.

Example launch line

1
gst-launch-1.0 videotestsrc ! decodebin ! videoconvert ! retinex ! videoconvert ! xvimagesink

Synopsis

Element Information

plugin

opencv

author

Miguel Casas-Sanchez <miguelecasassanchez@gmail.com>

class

Filter/Effect/Video

Element Pads

name

sink

direction

sink

presence

always

details

video/x-raw, format=(string)RGB, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

name

src

direction

source

presence

always

details

video/x-raw, format=(string)RGB, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Functions

Types and Values

struct GstRetinex

struct GstRetinex {
  GstOpencvVideoFilter parent;
  gint method;
  gint scales, current_scales;

  double *weights;
  double *sigmas;

  IplImage *cvA;
  IplImage *cvB;
  IplImage *cvC;
  IplImage *cvD;
};

Property Details

The “method” property

  “method”                   GstRetinexMethod

Retinex method to use.

Flags: Read / Write

Default value: Basic retinex restoration


The “scales” property

  “scales”                   gint

Amount of gaussian filters (scales) used in multiscale retinex.

Flags: Read / Write

Allowed values: [1,4]

Default value: 3